⭐ Alluvial Show n Tell

[Twapster]

That is some real pretty gold you have there
I would need a dying relative to get me away from a spot like that after 1 day

It was a bitter sweet feeling, just as its getting bigger and bigger...seems to always be the way. But the experience was excellent. Im sure many people have test panned areas and said ....there's NO GOLD LEFT HERE, even though historical records indicate the contrary. Test panning can seem arduous to a point where a combination of hot sun and not even a speck in what seems like a thousand test pans....... but then all of a sudden BAM. We have all walked away from spots like that i'm sure.

 

[G0lddigg@]

Yesterdays outing results.
Qing (Ch'ing) Dynasty minted coin general circulation (1644-1911 AD)

nice little specimen.... ended up crushing it, it had 4 separate pieces inside all weathered so obviously a secondary sedimentary deposit.

got some crazy fine gold that id never see in this place before. I was testing a new matt configuration with my flair

 

[MJB]

Awesome finds there GD...that coin is uber cool.

That little speci looks good too...gotta be happy with finding the small stuff aswell

 

[G0lddigg@]

Cheers mate. Yeh love the small stuff. .. if im catching that the rest usually takes care of itself

 

[Teemore]

Great result GD, love that coin ...... must dismantle the recliner chair one day to reclaim mine ......
Used the detector I assume?
Cheers T.

 

[dwt]

Nice work GD, if the flour's in the mat the pickers are going nowhere :lol:
May I enquire as to the new mat configuration you have been trying?
All good if it's a new trade secret :8

 

[DigginForGold]

All my stuff so far from my first 27 days of looking for the yellow:

 

[Jaros]

Looks perty good. Congrats. What brand of detector are you using??
Jaros

 

[G0lddigg@]

Nice work GD, if the flour's in the mat the pickers are going nowhere :lol:
May I enquire as to the new mat configuration you have been trying?
All good if it's a new trade secret :8

Hey mate damn straight. ... i just love the fines.... still remember selling my first 10 grams of powder.

No secrets here mate just alot of money spent and alot of testing basically i wanted to run alot more water throught my high capacity highbanker. In order to get the right flow had some 2 inch tube threaded up for the spray bars. Eats a bucket of dirt in about 5 seconds anyway mat config is.
Main highbanker sluice 300 wide 960 long
Downdraft-riverhog-talon-riverhog-talon-riverhog-talon-riverhog. Last riverhog doorstop riffle cut flat and second last cut 50%

Sluice flare - 600 wide x 1060 long
Razor back-downdraft-bedrock-bedrock-razorback-downdraft. Has a nice low profile.

Highbanker sluice 9.5 degrees flare sluice 7.5 running around 600 litres per minute. Also works fine at half that but too much black sand for my liking

 

[Goldtarget]

I like it mate. At the risk of asking a silly question do you find that the mats do alot better at a flatter pitch due to what factor? Water velocity, material, width or combinations of these? Is certainly flatter than I've ever tested.

 

[G0lddigg@]

Yep the second matt run is low profile but has the advantage of the flare smoothing out and increasing velocity. These matts are all drop riffle style matts so they work well with 7 plus degrees. The width is obviously to cut the water volume by exactly 50% so the velocity and volume of water keep the matts bare enought to pull the gold down.

9.5 on the banker thought that pretty aggressive. .. 8.5 works well but tenda to choke up in areas with that real heavy white sand. Hope that makes sense

PS only silly question is the one you dont ask....

 

[G0lddigg@]

Just rethinking your question mate... if you want to run less water you need more angle. When you run more water yoi can pitch back bit only so far before you pack up.

 

[Goldtarget]

I had to reread it a few times (only once out loud haha) Thanks. I'm very interested in two stage bottom halves its something I've spent considerable time in testing different configurations. With white sand do you mean that really heavy white type that hangs around. I've not encountered it but seen a few posts about it. Like black sands but non magnetic?

 

[dwt]

SIIIIIIIICK DUDE!!!
That's a mother of a banker, thanks for the pics, I've been running my sluice at 10 deg, but dialled it back to between 9-9.5 best I can guess, just about all the gold I'm finding is flat as a tac, some large, some small, the larger pieces would equate to 2% of what I'm getting the rest is flour, I work under the asumption that if I'm catching flour in the top section of the box then I needn't worry about anything bigger.......
Can I ask, do you find much black sand down the lower sections of your sluice, I processed yesterday for 3 hours and only found black sands on the second riffle, some speratic pieces down on the 3rd riffle but none on the fourth, my question being, if black sands exist on the lower sections of my sluice box can I expect gold to be down there as well, I've allways believed that gold should be caught in the top sections of the sluice, the lower sections really should be only for back up, if your catching gold at the bottom end of your sluice, your probarbly just spitting some out, I also can take into account that if your processing some massive amount of rich soil the your sluice is going to be full, so gold would show up in the bottom end of your sluice box........
What would be your thoughts?

 

[Goldtarget]

Just rethinking your question mate... if you want to run less water you need more angle. When you run more water yoi can pitch back bit only so far before you pack up.

True. I have tested the pitch angle of slick or delivery plate to increase velocity to reduce/decrease the over all angle of the capture configuration resulting in earlier gold drop outs coupled with less water flow.

 

[G0lddigg@]

I had to reread it a few times (only once out loud haha) Thanks. I'm very interested in two stage bottom halves its something I've spent considerable time in testing different configurations. With white sand do you mean that really heavy white type that hangs around. I've not encountered it but seen a few posts about it. Like black sands but non magnetic?

Yes mate its a seriously heavy white sand that is in the pan after you get rid of the black sand. Its soo painfull but if you're catching it your dialed in. Its prevalent in volcanic areas where you find lots of gems. It may be a garbett sand im not sure.

 

[G0lddigg@]

SIIIIIIIICK DUDE!!!
That's a mother of a banker, thanks for the pics, I've been running my sluice at 10 deg, but dialled it back to between 9-9.5 best I can guess, just about all the gold I'm finding is flat as a tac, some large, some small, the larger pieces would equate to 2% of what I'm getting the rest is flour, I work under the asumption that if I'm catching flour in the top section of the box then I needn't worry about anything bigger.......
Can I ask, do you find much black sand down the lower sections of your sluice, I processed yesterday for 3 hours and only found black sands on the second riffle, some speratic pieces down on the 3rd riffle but none on the fourth, my question being, if black sands exist on the lower sections of my sluice box can I expect gold to be down there as well, I've allways believed that gold should be caught in the top sections of the sluice, the lower sections really should be only for back up, if your catching gold at the bottom end of your sluice, your probarbly just spitting some out, I also can take into account that if your processing some massive amount of rich soil the your sluice is going to be full, so gold would show up in the bottom end of your sluice box........
What would be your thoughts?

Your gunna hate me for this but my belief is that alot of people come to teh same conclusion.... moat of the gold is up top so it must be fine.... if theres one thing ive learnt its that gold drops out in slow moving water. Where is the slowest area in your box? Right at the top right... that why we use punch plate up top to keep it there. I would personally be concerned if i didnt see black sand further down the sluice. I think this is because some riffles create great momentum on the way down and gold just cant drop out in this motion. Im not saying that's whats happened in yoir box but these are my thoughts
What i would do is take your last riffles and put a big chunk of miners moss between them held down by expanded steel. Run all day amd check that last piece. If you're blowing heavies theyll get into a thick owiece of moss everytime.

Ps would love to see yoir setup...

 

[G0lddigg@]

Just rethinking your question mate... if you want to run less water you need more angle. When you run more water yoi can pitch back bit only so far before you pack up.

True. I have tested the pitch angle of slick or delivery plate to increase velocity to reduce/decrease the over all angle of the capture configuration resulting in earlier gold drop outs coupled with less water flow.

Thats allwe can do mate test and test some more i use clinometer app to dial my runs in now.

For those who havent done the math 9.5 degrees is about 2 inches per foot of drop. 7 is about 1.5

 

[dwt]

choke up in areas with that real heavy white sand.

Been stuck with this stuff for quite a while, the best way I've found past it is the black large pans with the double section of riffles built in them, large on one side and fine riffles right next to them, the fine riffles have been making for easy clean up with the pan submerged in water and gentle swaying from left to right, whilst keeping a keen eye on any yellow sitting in the fine riffles

Mate thats exactly what i was doing at 8am this morning in my lounge room ... the old aussie disposal pan works a treat

 

[Goldtarget]

If we convene a meeting of the minds the beers are on me. I'll leave this thread now for that which it was intended. Cheers guys.